# Define here the models for your spider middleware
#
# See documentation in:
# https://docs.scrapy.org/en/latest/topics/spider-middleware.html

from scrapy import signals

# useful for handling different item types with a single interface
from itemadapter import is_item, ItemAdapter


class BossSpiderMiddleware:
    # Not all methods need to be defined. If a method is not defined,
    # scrapy acts as if the spider middleware does not modify the
    # passed objects.

    @classmethod
    def from_crawler(cls, crawler):
        # This method is used by Scrapy to create your spiders.
        s = cls()
        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
        return s

    def process_spider_input(self, response, spider):
        # Called for each response that goes through the spider
        # middleware and into the spider.

        # Should return None or raise an exception.
        return None

    def process_spider_output(self, response, result, spider):
        # Called with the results returned from the Spider, after
        # it has processed the response.

        # Must return an iterable of Request, or item objects.
        for i in result:
            yield i

    def process_spider_exception(self, response, exception, spider):
        # Called when a spider or process_spider_input() method
        # (from other spider middleware) raises an exception.

        # Should return either None or an iterable of Request or item objects.
        pass

    def process_start_requests(self, start_requests, spider):
        # Called with the start requests of the spider, and works
        # similarly to the process_spider_output() method, except
        # that it doesn’t have a response associated.

        # Must return only requests (not items).
        for r in start_requests:
            yield r

    def spider_opened(self, spider):
        spider.logger.info('Spider opened: %s' % spider.name)


class BossDownloaderMiddleware:
    # Not all methods need to be defined. If a method is not defined,
    # scrapy acts as if the downloader middleware does not modify the
    # passed objects.

    @classmethod
    def from_crawler(cls, crawler):
        # This method is used by Scrapy to create your spiders.
        s = cls()
        crawler.signals.connect(s.spider_opened, signal=signals.spider_opened)
        return s

    def process_request(self, request, spider):
        # Called for each request that goes through the downloader
        # middleware.

        # Must either:
        # - return None: continue processing this request
        # - or return a Response object
        # - or return a Request object
        # - or raise IgnoreRequest: process_exception() methods of
        #   installed downloader middleware will be called
        request.cookies = {
            'cookie': 'lastCity=101200100; __fid=0937a8c7dc897e76d9ac2299374fe716; __g=-; Hm_lvt_194df3105ad7148dcf2b98a91b5e727a=1616158457,1616158468,1616162612; SL_GWPT_Show_Hide_tmp=1; SL_wptGlobTipTmp=1; Hm_lpvt_194df3105ad7148dcf2b98a91b5e727a=1616162615; wt2=DosfYKkjl3e2dsMwRwdg-wkqObpIQBFQ1fNebDOYE3XptYNavIoQtsNHL8iZgGdj4Uk5RahOizSJo2OJ8Sca5RA~~; __l=l=%2Fwww.zhipin.com%2Fweb%2Fgeek%2Frecommend%3Frandom%3D1616162658930&r=&g=&s=3&friend_source=0&s=3&friend_source=0; _bl_uid=O4kmhmLzgCCd0LidLqRUaFsj42aO; __c=1616162612; __a=73690408.1616158457.1616158457.1616162612.16.2.4.16; geek_zp_token=V1RNwkFeP_3llgXdNoyRweKimx5T7Vww~~; __zp_stoken__=41a5baTdifA0nX2FPJT1iMlI1THcINkgdGnJqJE55EXhdHjh1J2N9bGgbCjNeTBplDztfLhJjSgAPDHcGMDx6EEg0dzsuTDoIews1H2ddT2wiAWNJVncxdANweF8AGU8OCWpVFyBDOAYNdEtlPg%3D%3D',
        }
        return None

    def process_response(self, request, response, spider):
        # Called with the response returned from the downloader.

        # Must either;
        # - return a Response object
        # - return a Request object
        # - or raise IgnoreRequest
        return response

    def process_exception(self, request, exception, spider):
        # Called when a download handler or a process_request()
        # (from other downloader middleware) raises an exception.

        # Must either:
        # - return None: continue processing this exception
        # - return a Response object: stops process_exception() chain
        # - return a Request object: stops process_exception() chain
        pass

    def spider_opened(self, spider):
        spider.logger.info('Spider opened: %s' % spider.name)
